Home / 1,212,922.74-1,819,384.14-680,817.54

Finding the Fourth Proportional to 1,212,922.74, 1,819,384.14 and 680,817.54

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Solution

The fourth proportional to 1,212,922.74, 1,819,384.14 and 680,817.54 is: 1,021,226.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,922.74 : 1,819,384.14 = 680,817.54 : x
  2. Step 2: Convert to fraction form
    1,212,922.74/1,819,384.14 = 680,817.54/x
  3. Step 3: Cross multiply
    1,212,922.74x = 1,819,384.14 × 680,817.54
  4. Step 4: Simplify right side
    1,212,922.74x = 1,238,668,634,509.82
  5. Step 5: Solve for x
    x = 1,238,668,634,509.82/1,212,922.74
  6. Step 6: Final answer
    x = 1,021,226.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.